Table 1.

Experimental diets and nutrient composition.

	Starter (0–14 days)	Grower (15–28 days)	Finisher (29–42 days)
Ingredients, %
Corn, yellow grain	58.46	64.73	68.53
Soybean meal, dehulled solvent	34.48	29.33	24.64
Bio Phos 16/21 P	1.56	1.59	1.29
Limestone	1.49	1.46	1.60
Salt, plain	0.51	0.49	0.46
Mineral mixa	0.05	0.05	0.05
dl-Methionine	0.28	0.08	0.16
Lysine	0.17	0.02	0.12
Vitamin premixb	0.25	0.25	0.25
Fat, A/V blend	2.75	2.00	2.90
Original XPCc	0.125	0.125	0.125
Nutrient composition
Crude protein, %	22.02	19.80	17.99
ME, kcal/kg	3,048	3,055	3,151
Crude fat, %	5.30	4.74	5.73
Lysine, %	1.30	1.05	1.00
Methionine (M), %	0.61	0.39	0.44
M + Cysteine, %	0.97	0.72	0.75
Tryptophan, %	0.26	0.23	0.20
Threonine, %	0.82	0.74	0.67
Arginine, %	1.45	1.29	1.14
Valine, %	1.00	0.91	0.82
Calcium, %	0.92	0.90	0.89
Available phosphorus, %	0.45	0.45	0.38
Sodium, %	0.22	0.21	0.20
Chloride, %	0.39	0.34	0.35

^aTrace mineral premix added at this rate yields 149.6 mg manganese, 55.0 mg zinc, 26.4 mg iron, 4.4 mg copper, 1.05 mg iodine, 0.25 mg selenium, a minimum of 6.27 mg calcium, and a maximum of 8.69 mg calcium per kilogram of diet. The carrier is calcium carbonate, and the premix contains less than 1% mineral oil.

^bVitamin premix added at this rate yields 11,023 IU vitamin A, 3,858 IU vitamin D₃, 46 IU vitamin E, 0.0165 mg B₁₂, 5.845 mg riboflavin, 45.93 mg niacin, 20.21 mg d-pantothenic acid, 477.67 mg choline, 1.47 mg menadione, 1.75 mg folic acid, 7.17 mg pyroxidine, 2.94 mg thiamine, 0.55 mg biotin per kilogram diet. The carrier is ground rice hulls.

^cDiamond V Original XPC, Cedar Rapids, IA, USA.